Home / 1,080,415.67-1,620,453.11-679,830.17

Finding the Fourth Proportional to 1,080,415.67, 1,620,453.11 and 679,830.17

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Solution

The fourth proportional to 1,080,415.67, 1,620,453.11 and 679,830.17 is: 1,019,638.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,415.67 : 1,620,453.11 = 679,830.17 : x
  2. Step 2: Convert to fraction form
    1,080,415.67/1,620,453.11 = 679,830.17/x
  3. Step 3: Cross multiply
    1,080,415.67x = 1,620,453.11 × 679,830.17
  4. Step 4: Simplify right side
    1,080,415.67x = 1,101,632,901,746.91
  5. Step 5: Solve for x
    x = 1,101,632,901,746.91/1,080,415.67
  6. Step 6: Final answer
    x = 1,019,638.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.